funny thing, both of my 69 camaros ( one a small blk and one a bb) have 4 radiaor mounting points. the 2 on the pass side are just bolts that screw into the radiator support. on the driver side both cars use bolts with nuts and washers. Is this correct? and if not what is?? also if anyone knows the size and type of bolts, nuts, washers to use? thank in advance

sorry guys one more question: would the core channels be the same width on a 3 core and a 4 core radiator?

On the drivers side rubber well nuts were used, repro places sell them. BB rads were wider than SB, so they used the outer set of holes.

I would check to see if your local radator shop will replace them on your core first, before you spend money. My rad guy will not do it because it may cause core failures. I use a new radiator off ebay that has a close looking core and have the tanks replaced. I did a CB one earlier and just had an auto one done. I use a dremal tool to cut the Harrison hanger holes in the supports.

Jeff, I'm not sure what why that one is different, might just be wear marks from the seal. The NOS ones sold by GM were later service parts, where the whole thing is chromed and the satin was painted on except for the leg (I have a set from the 80s). Factory satin headers were not painted. From the factory, the surface was not polished (except for the leg) prior to chroming. The unpolished section almost looked like it was glass beaded then chromed.

I think the US stamp in the pic of the ebay one looks different from my original.

On the subject of repro 309 master, yes there are differences when you put the repro and orig side by side. I still have the one you restored for my SS. I bought the repro one for my 327 car that I added power brakes. The repro one looks larger to me.

Here are the side by side pics, so everyone can see for themselves... Jerry restored original one is on the left when looking from the front.

My freind bought a "carsflash" master, its original, but the front of the master was drilled out, I assume during the rebuilding process and a threaded cap was installed. Very noticable to me and you see the cap every time you open the hood. his auction pics never showed the front!

I bought a repro 309 fromt BelairBob. The box says Master Power on it. The repro is very nice. Almost identical to originals and looks very well made (not pot metal!). I have not installed it yet (car getting paint). It has the US stamp on it.

I have an air cleaner lid that might be the same as the one used on 67 Z/28s with the flat hood cowl plenum air cleaner. Does anyone have the exact measurements to compare to? My lid measures 16 7/8" in diameter (edge to edge) and has a rubber seal on the inside outer edge. below is a pic and the thread that was discussing the lids. Thanks! BTW Hi Jerry! Long time no talk to